Effect of borosilicate glass on the fabrication and properties of Ba0.3Sr0.7TiO3 ceramics

Author

Hao, Hua ; Guo, Lu ; Liu, Hanxing ; Li, Yiqiu ; Cao, Minghe

Author_Institution

State Key Lab. of Adv. Technol. for Mater., Synthesis & Process., Wuhan Univ. of Technol., Wuhan, China

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

3

Abstract

In this paper, zinc borosilicate glasses (ZnO-B₂O₃-SiO₂) were added to Ba_0.3Sr_0.7TiO₃ (BST) ceramics, to determine the role of glass additives on the dielectric properties and energy storage density of BST. Microstructure, relative density, dielectric properties and the breakdown strength (BDS) were investigated. The dependence of permittivity and BDS on the glass composition were discussed. The results indicate that the relative density of BST ceramics with glass additions can be greatly improved because of the glass liquid phase formation during sintering. The BDS was found to increase remarkably by sacrificing the dielectric permittivity. The BST ceramics with 6 wt% ZBS3(40mol%ZnO-35mol%B₂O₃ -25mol%SiO₂) glass were found to possess optimal properties, with BDS~26.7 kV/mm and energy density ~1.5 J cm^-3.

Keywords

barium compounds; borosilicate glasses; composite materials; crystal microstructure; electric breakdown; energy storage; permittivity; sintering; strontium compounds; zinc compounds; Ba_0.3Sr_0.7TiO₃-ZnO-B₂O₃-SiO₂; ceramics; composite materials; dielectric breakdown strength; dielectric permittivity; dielectric properties; energy storage density; glass composition; glass liquid phase formation; microstructure; relative density; sintering; zinc borosilicate glasses; Ceramics; Dielectric losses; Electric breakdown; Glass; Permittivity; Powders; BST; breakdown strength; energy density; glass additions;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

Conference_Location

Aveiro

Print_ISBN

978-1-4673-2668-1

Type

conf

DOI

10.1109/ISAF.2012.6297806

Filename

6297806